Equalizing device for furrow-opening disks.



PATENTED FEB. 17, 1903.

A. PEDERSON. EQUALIZING DEVICE FOR FURROW OPENING DISKS.

I APPLICATION FILED SEPT. 10, 1902.

In... HHHIH F0 MODEL.

UNITED STATES PATENT OFFICE.

AMUND PEDERSONJOF BARRETT, MINNESOTA.

EQUALIZING DEVICE FOR FURROW-OPENING D'ISKS.

SPECIFICATION forming part of Letters Patent N 0. 721,086, datedFebruary 17, 1903.

Application filed September 10, 1902. S ri l No. 122,848. (No model.)

- portion of the periphery, so as to equalize the strain on the axle ofthe disk, which would otherwise be occasioned by the resistance of theearth over which the disk traversed.

In order to understand the peculiar construction of my invention,reference should be had to the following description, taken inconnection with the accompanying drawings, in which- 7 Figure l is aside-view of a disk, its supporting-bar, andshaft, showing the equalizerapplied thereto. Fig. 2 is a top plan view of the disk-supporting barand equalizer. Fig. 3 is a longitudinal sectional view through theequalizer.

The reference-numeral l designates a draft 7 bar, of any preferredconstruction, which'can be attached to the frame of a seed drill orplanter, and on one end of the bar is aboaring 2, having a suitableopening, in which is secured an axle 3. Carried by the axle 3 is arotary disk 4, .while onthe extremity of the bar 2 is a boot 5, formingpart of the seedboot which leads from a hopper, (not shown,) so as todepositthe seed adjacent the disk.

Intermediate the ends of the bar 1 and secured to the upper edge thereofis an equal-' izer 6. This equalizer comprises a bar adapt-' ed to besecured to the top of the bar 1 and running parallel therewith for aportion of its length, thence bent upward and inward toward the disk, asat 7, the end of the bar terminating in a slightly outwardly inclinedextension 8. On the end 8 of the bar 6 is journaled a roller 9, theperiphery of which is adapted and designed to bear against the concavesideof the concavo-convex disk 4. The bearing-point of the roller 9 isadjacent to the upper surface of the disk, so that approximately thesame lateral resistance will be offered by the roller 9 above thejournal of the diskas would be offered by the earth below the journal.It will be noticed that the face of the roller 9 is at right angles tothe disk 4-, so that the friction on the axle and hearing will bereduced or considerably less than if no equalizing-pressure was exertedabove the axle.

Having thusdescribed the invention,what is claimed as new, anddesired'tobe secured by Letters Patent, is'- 1. An equalizing device fordisks comprising a'bar and having an upwardly-bent extension curvedinwardly toward the disk, and a roller carried by the free end of thebar and bearing against the disk above its journal.

2. The combination with a rotary disk for an equalizing devicecomprising a bar, one end of which terminates adjacent the disk abovethe journal thereof, and a roller carried bythe free end of the arm, theedge of which bears against the surface of the disk above the journalthereof.

In testimony whereof I affix my signature in presence of two witnesses.

AMUND PEDERSON.

Witnesses:- l

HENRY KLOSSNER, M. B. ELLINGSON.

